Bussmann
®
SMT Time-Lag Fuse
Subminiature Surface Mount Fuses
R
6125T
Dimensions - mm (inches)
1.50
±
0.20
(0.059
±
0.008)
B1.5
6.10
±
0.20
(0.240
±
0.008)
2.50
±
0.15
(0.098
±
0.006)
Catalog Symbol:
6125T
Time-Lag
Voltage Rating:
125V AC/DC
Interrupting Rating:
50 Amp AC, Power Factor = 1.0
50 Amp DC, Battery Source
Physical Size:
EIA SOCM-6125AA.
6.1
≈
2.5
≈
2.5 mm (L
≈
W
≈
H)
Agency Approvals:
Universal Modular Fuse, IEC127-4
UL Recognition, Std. 248-14, File E19180, Guide JDYX2
CSA Certified, C22.2 No. 248.14, File 53787, Class 1422-30
Additional Approvals Pending
General Information:
• Surge resistant time-lag fuse.
• Brazed seals: body to end plates.
• Compatible with wave soldering.
• Excellent environmental integrity.
• Economical overcurrent protection.
Time Current Characteristics:
125% of Rating: carry 1 hour min.
200%: Open within 2 minutes.
1000%: Open within 0.01 to 0.1 seconds.
2.50
±
0.15
(0.098
±
0.006)
Construction
1
2
3
4
5
1.
2.
3.
4.
5.
Brass end plate (one of two)*.
High temperature brazing alloy preform (one of two).
Silver metallization*.
Ceramic body.
Spiral wound fusible element.
*End terminations plated with Ni and 90/10 Sn/Pb after assembly.
Packaging and Ordering Information:
Tape and Reel:
Standard 12mm tape, in compliance
with EIA-RS481 (equivalent to IEC 286, Part 3).
6125T
Product
Symbol
(See Table)
Rated Current
Package Code
TR
= 1,000 pieces on tape on a 178mm reel.
SP
= 50 pieces on tape in a plastic box.
Contact Bussmann if other package quantities are required.
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000 VAC, 75-1500 VDC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 314-527-1270 for more information.
Electrical Characteristics
Part Number
(xx=Package Code)
Current Rating
(Amperes)
Marking
Typ. Resistance
@
²
10% Rated
Current (Ohms)
Max. Power Dissipation
@ 125% of Rated Current
(Milliwatts)
XX/6125T-250mA
.25
B.25
4.5
500
XX/6125T-500mA
.5
B0.5
1.0
500
XX/6125T-1A
1
B1A
0.25
500
XX/6125T-1.5A
1.5
B1.5
0.10
500
XX/6125T-2A
2
B2A
0.06
500
XX/6125T-3A
3
B3A
0.04
1000
XX/6125T-4A
4
B4A
0.03
1200
XX/6125T-5A
5
B5A
0.02
1200
General Notes:
1.
Device designed to carry 125% of rated current for one hour minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated
ambient temperatures.
2.
All measurements made at 23 ± 3°C ambient temperature with the device mounted on a suitable circuit board trace.
12-16-98
SB98107 Rev. A
Form No. 6125T
Page 1 of 2
BIF Doc #3007
Bussmann
®
SMT Time-Lag Fuse
Subminiature Surface Mount Fuses
Recommended Land Pattern - mm (inches)
6.86
(0.270)
R
6125T
3.15
(0.124)
1.96
(0.077)
Environmental Specifications:
Operating Temperature Range:
-65 to +125°C, with proper derating.
Thermal Shock:
MIL-STD-202, Method 107, Test Condition B (-65 to
125°C), 1000 cycles, fuses soldered to FR-4 glass-epoxy
circuit board.
Vibration:
MIL-STD-202, Method 204, Test Condition C
(55 to 2000 HZ, 10G).
Solderability:
Withstands 60 seconds above 200°C, 260°C maximum.
Moisture Resistance:
MIL-STD-202, Method 106, 10 day cycle.
Solder Leach Resistance & Terminal Adhesion:
EIA - 576 (30 seconds submersion in 260°C tin-lead solder).
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this BIF document are by definition uncontrolled. This bul-
letin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to
change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information
contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
12-16-98
SB98107 Rev. A
Form No. 6125T
Page 2 of 2
BIF Doc #3007
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